(2) Plywood (plywood, thin core board): After the logs are boiled and softened, they are cut into thin wood chips along the direction of annual rings, glued and then cross-glued with three or more odd-numbered veneers for hot pressing. Advantages: the surface is natural and beautiful, retaining the beautiful patterns of natural wood. Generally, you don't need to stick other veneer materials when you use it, but you can get an excellent appearance by painting it. Good strength and toughness, strong nail grip, easy processing and insulation, which can make up for some natural defects of natural wood, such as small width, large deformation and great mechanical difference between vertical and horizontal directions. The furniture made is lighter than other wood-based panels. Good bending resistance. Disadvantages: therefore, it is less used as the overall material of furniture, and is generally used in the decorative parts of furniture. According to different thickness specifications, plywood is generally divided into six specifications: 3-ply, 5-ply, 9-ply, 12, 15 and 18. Because plywood has the advantages of small deformation, large width, convenient construction, no warping and good tensile properties of horizontal stripes. Therefore, this product is mainly used for various plates used in furniture manufacturing, interior decoration and residential construction, followed by shipbuilding, trunk manufacturing, various military and light industrial products, packaging and other industrial departments.
(3) joinery board (large core board): natural battens are used in the middle of the core board, and thin veneer is stuck on both sides, so it is also called large core board, which is one of the most important materials in decoration. The price of large core board is cheaper than that of thin core board, that is, plywood mentioned above. It has low density, small deformation, high strength and good dimensional stability, so it is widely used. The wood strips in the middle of the joinery board are generally made of poplar, paulownia, Chinese fir and white pine. High-quality products have smooth surface, no degumming, sand loss and indentation, small thickness deviation and no obvious hollowness after sawing. Advantages: firm quality, sound absorption and heat insulation. In addition to the above, in the decoration company, players' toys are very popular because of their simple processing technology and good nail holding ability. Disadvantages: Due to the influence of processing technology, the longitudinal bending resistance of the core material is poor, while the transverse bending resistance is good. In addition, the water content is high; The formaldehyde content is also high, and it needs to be treated before it can be used with confidence. Afraid of humidity, avoid using it in kitchen and bathroom during construction. Many consumers choose large core boards according to weight and price. In fact, the heavier the core board, the worse the quality. Because of its heavy weight, this plate is made of miscellaneous wood.
From the perspective of the whole wardrobe industry, the commonly used plates are particleboard and MDF (medium density board). Therefore, we will focus on the detailed anatomy of these two materials.
(4) Density board (fiberboard): it is an artificial board made by processing wood or non-wood plants into fibers (after cutting, soaking and beating) and adding used adhesives at high temperature and high pressure. As the name implies: the density is higher than that of ordinary board, and it can be divided into high-density board, medium-density board and low-density board according to its different densities. Medium density board is usually used. Advantages: excellent performance, uniform material and no dehydration problem. The performance of MDF is close to that of natural wood, but it has no defects of natural wood. The internal structure is not easy to warp, crack and deform, and is suitable for all kinds of processing. The surface is smooth, the material is fine, the edge is firm, and it is easy to form, avoiding problems such as rot and moth-eaten. High bending strength and impact strength. Density board can be carved into other special shapes. Disadvantages: its disadvantages are as obvious as its advantages, such as poor moisture resistance and poor re-grasping ability, and it is not easy to re-fix. From the point of view of moisture resistance, if a MDF is soaked in water, it will expand like bread. However, when purchasing, it is not good to pay attention to the expansion too fast or too slow, and it is likely to be high-density board and low-density board (these two boards are rarely used now because the defects are obvious). High processing precision and process requirements, high cost; Because of the high density, it must be cut with a precision saw, which is not suitable for processing at the decoration site. In foreign countries, MDF is a good material for making furniture, but because our standard for MDF is several times lower than the international standard, it is in my >>
Question 2: What plate can furniture choose to make the best plate and the knowledge of plate selection.
Classification of wooden boards
1. According to the material classification, it can be divided into two categories: solid wood board and wood-based board. At present, in addition to the floor and door leaves, we generally use artificially processed wood-based panels.
2. According to the molding classification, it can be divided into: solid board, plywood, fiberboard, decorative board, fireproof board, etc.
Two. All kinds of boards.
1, solid wood board
As the name implies, solid wood boards are made of complete wood. These plates are durable and natural in texture, making them the best choice for decoration. However, due to the high cost and high construction technology requirements, this kind of plate has not been widely used in decoration. Solid wood boards are generally classified according to entity names, and there is no unified standard specification.
2, splint
Plywood, also known as plywood, is commonly known as thin core board in the industry. It is made of three or more layers of veneer or thin plate with a thickness of one millimeter by hot pressing. It is the most commonly used material for handmade furniture at present. Splints are generally divided into six specifications: 3 cm, 5 cm, 9 cm, 12 cm, 15 cm, 18 cm (1 cm is 1 mm).
3. Decorative board
Decorative board, commonly known as panel. It is a decorative board with one-sided decoration function, which is made by precisely planing solid wood plates into thin veneer with a thickness of about 0.2mm, using plywood as the base material and adopting the gluing process. It is a special way of splint, with a thickness of 3 cm. Decorative board is a kind of advanced decorative material which is different from mixed oil at present.
4. Core plywood
Blockboard, commonly known as large core board in the industry. The large core board is formed by gluing and splicing two veneers in the middle. The price of large core board is cheaper than that of thin core board, and its longitudinal bending and compressive strength is poor, but its transverse bending and compressive strength is high.
5. Core plate
Particleboard is a thin board made of wood particles as the main raw material and then infiltrated with glue and additives. According to the pressing method, it can be divided into extruded particleboard and flat particleboard. The main advantage of this kind of plate is that it is extremely cheap. Its disadvantage is also obvious: its strength is extremely poor. Generally, it is not suitable for making large or mechanical furniture.
6, density board
Density board, also known as fiberboard. It is an artificial board made of wood fiber or other plant fiber and urea-formaldehyde resin or other suitable adhesive. According to its density, it is divided into high density board, medium density board and low density board. High-density board is easy to reprocess because it is soft and impact-resistant. In foreign countries, MDF is a good material for making furniture. However, because the national standard for height board is several times lower than the international standard, the use quality of MDF in China needs to be improved.
7, fire board
Fireproof board is a decorative board made of siliceous or calcareous materials as the main raw materials, mixed with a certain proportion of fiber materials, lightweight aggregate, adhesive and chemical additives, and autoclaved. It is a new type of material that is used more and more at present, and its use is not only because of fire prevention. Fire-proof board construction requires higher glue, and the price of fire-proof board with better quality is more expensive than decorative board. Generally, the thickness of fireproof board is 0.8mm, 1mm,1.2 mm. ..
8. Melamine board
Melamine board, the full name is melamine impregnated adhesive paper veneer artificial board. Paper with different colors or textures is soaked in melamine resin glue, then dried to a certain curing degree, spread on the surface of particleboard, medium density fiberboard or hard fiberboard, and then hot-pressed into decorative boards.
Melamine board is a kind of wall decoration material. At present, some people use melamine board to fake composite floor for floor decoration, which is inappropriate.
Selection of plate
Look at environmental protection first.
According to the requirement of "Formaldehyde Emission from Wood-based Panels and Their Products for Interior Decoration Materials * * *" implemented on June 5438+1 October1this year, the formaldehyde emission from building materials directly used indoors must be less than or equal to1.5 mg/L. If the formaldehyde emission is less than or equal to 5mg/l, it can only be used indoors after treatment, and if the formaldehyde emission exceeds 5mg/l, it is not up to standard. Taking substandard wood home is like adding a gas generator to your new home. You must look at environmental protection before buying building materials.
1, blockboard "big core board": moisture-proof effect is good, so it cannot be painted directly.
In the middle of the joinery board is a core material made of natural wood strips, and both sides are glued with thin veneer. As the name implies, large core board is one of the most important materials in decoration. Can be used as furniture, wooden doors, door covers, heating covers, curtain boxes, etc. Its waterproof and moisture-proof performance is better than particleboard and medium density fiberboard. Look at the internal wood when selecting, it should not be too broken, and the gap between the wood is 3...> & gt
Question 3: What is the best material to make a wardrobe? The solid wood particle board is not easy to deform, and has the advantages of smooth surface, strong compression resistance, chicken rationality and stability, low cost and high environmental protection.
The high-density board has the same environmental protection grade, which is higher than the solid wood particle board.
High-grade double-sided blockboard has the highest price.
Question 4: What plates are commonly used in custom-made furniture now? Custom-made furniture has become a very popular way of furniture arrangement in today's society, breaking the limitation of space. What plate is used for custom furniture? Let's get to know each other!
1. Core plate
After drying, it is mixed with rubber compound, hardener and waterproof agent. , is a kind of artificial board which is pressed at a certain temperature and pressure. Because its cross section is similar to honeycomb, it is called particleboard. Particleboard is also a series of customized furniture boards, which has a granular staggered structure inside, and the performance in all directions is basically the same, and the structure is relatively uniform, so the nail holding force is good and the lateral bearing capacity is good.
2. Fiberboard
Fiberboard is made of plant fiber as the main raw material through thermal grinding, sizing, paving, hot pressing and other processes. Fiberboard has smooth surface and fine material, which is convenient for modeling and milling. Fiberboard has good toughness and is not easy to break under the condition of small thickness (such as 6MM and 3MM), so it is a good raw material for this kind of customized furniture board. You can consider it when buying custom furniture plates.
3. Particle board
Customized solid wood particleboard is also very good. In fact, it is a kind of particleboard produced by particleboard technology, which belongs to homogeneous particleboard. Solid wood particleboard is an artificial board made of wood or other lignocellulosic materials, coated with adhesive and glued under the action of heat and pressure. The diversification of customized furniture plates, everyone can choose freely when customizing.
There are many kinds of customized furniture plates. I believe everyone knows them! Friends who plan to buy furniture may wish to know more about these plates!
Question 5: What plate is better for the whole wardrobe? At present, there are about three kinds of wardrobe plates: 1. Medium density fiberboard, 2. Plywood, 3. Incense board
Medium density fiberboard is a kind of density board, including long fiberboard and short fiberboard. Wood fiber or other plant fibers are used as raw materials, which are crushed, separated, dried, coated with urea-formaldehyde resin or other suitable adhesives, and then hot-pressed. Its density is generally in the range of 0.5-0.8g/cm3, and its thickness is generally 3-30mm.
Plywood, also known as plywood, is commonly known as thin core board in the industry. It is made of three or more layers of veneer or thin plate with a thickness of one millimeter by hot pressing. It is the most commonly used material for handmade furniture at present. The moisture resistance of plywood is much better than that of MDF.
Xiangxiang board is a new type of eco-friendly man-made board, which is made of crop straws such as rice and wheat in nature as the main raw materials, polyurethane eco-adhesive completely free of formaldehyde as the adhesive, and advanced national patent technology. Zero Border Fragrant Board "―― the first wood-based panel in China that does not release formaldehyde! It has the advantages of wood particleboard and medium density fiberboard, and can be widely used in interior decoration, furniture manufacturing, floors, kitchen cabinets, sound absorption boards, writing boards, drawing boards, packaging materials and so on. It is an ideal substitute for wood-based panels. Lotus fragrance board is a truly environmentally friendly and harmless board. It is recommended to use this board when making a wardrobe, which is of great benefit to the family.
If you want to know more specifically, you should still search for Olongweigao in Baidu. This brand is prepared for the application of these three kinds of plates. I suggest you get to know it.
Question 6: What board is used for furniture? No. 1 in environmental protection/composite solid wood, moisture-proof board and solid wood paint-free board are moisture-proof, environmentally friendly and cost-effective. The national cabinet products have experienced more than ten years of development, and the experience of more than ten years is enough to say that the wardrobe damp-proof board is the best choice! The cabinet damp-proof board can be used in harsh and humid environment, which reflects its high quality. Because the surface is more brittle, the requirements for production equipment are higher. Now the walls of the new home are all decorated and painted, and the walls will contain a little water. The whole wardrobe can't be ventilated after installation, and the back panel of the wardrobe needs better moisture-proof board. Moisture-proof board is soaked in water, because there are long wood fibers and green moisture-proof agent, which will not expand to a certain extent, so it is reasonable for most brands of cabinets to use moisture-proof board as the main material of cabinets. The second/regular manufacturer produces particleboard and MDF. Particleboard made of the same material is more environmentally friendly than MDF. In fact, the reason is very simple: molded wood does not need glue, and there is definitely nothing to say about environmental protection. If the amount of glue used for cutting into 1 piece is different from that used for 5 pieces, the less glue used, the more environmentally friendly it is. Dense density board, also called MDF, is made of wood powder, which has better flatness and is more suitable for carving. Usually used for door panel modeling, such as baking paint and molding (plastic absorption). In addition, MDF is softer, less explosive and easier to process, so many small factories use MDF. In terms of moisture resistance, the moisture resistance of particleboard is much worse than that of moisture-proof board. There is no green core moistureproof agent, and if it is placed in a humid environment for a long time, the wood is prone to mildew and corruption. The raw material of MDF is wood flour. After being soaked in water, MDF will swell like a cake. The third place/small factory produces particleboard at low cost. Most small manufacturers consider the cost. Generally, particleboard (that is, solid wood particleboard) and ordinary glue are used, and the cost is the lowest among the three materials. Fourth place/Eco-board (refers to the eco-board produced by small workshops) Large core board or melamine-coated sandwich board quality: Sandwich board (commonly known as joinery board, joinery board) is a kind of plywood with solid wood core, which is made by cutting logs into strips, splicing them into cores and sticking veneers outside. The stress of the whole board comes from two thin outer veneers, and the middle is spliced with wood blocks, so the base material is basically not stressed. Most of these boards are made of Chinese fir for one or two years. As long as you can pick wood with your fingers, the nail grip is several times lower than the national standard.
Question 7: What kind of furniture board is better? How to choose the type? The quality of furniture board mainly depends on whether it is suitable for your own use and your own budget. You can refer to the following points when choosing a category:
First, distinguish different plates.
Customized furniture market commonly used density board, solid wood particle board, solid wood multilayer board. To judge and distinguish the classification of customized furniture plates, the most direct way is to look at the cut surface of the template.
Seen from the cross section, the density board is made of powdered wood fibers by high temperature and high pressure pressing. The combination is relatively tight, the surface finish is high, but the weight is relatively large. Powdered fiber absorbs moisture more easily than other plates, so the moisture-proof performance is almost the same as other plates, and the edge sealing in place does not affect the use.
Solid wood particle board is made of wood particle structure by high temperature and high pressure pressing, so it is named Gu. The combination of solid wood particle board is not as tight as density board, so the weight is lighter, and some poor quality can even see small pores. Solid wood particleboard is one of the most commonly used panel furniture materials in the industry at present, which has the advantages of difficult deformation and strong nail grip.
Solid wood multilayer board is made of three or more layers of single board or thin board at high temperature and high pressure. Solid wood multilayer board has the advantages of small deformation, high strength, good internal quality and good flatness.
Second,
Looking for environmentally friendly plates
Whether the plate is environmentally friendly depends mainly on its formaldehyde emission. We mainly take E2 grade and E 1 grade as environmental protection standards. Many merchants say that their plates are E0 grade, even beyond E0 grade, but there is no such standard in China at present, so we need to identify them when inspecting the goods. The formaldehyde emission of E2 grade board is less than 5mg/L, which is generally limited to outdoor use, and indoor use must be closed. The formaldehyde emission of E 1 grade board is less than 1.5mg/L, which can be directly used indoors. Now some businesses advertise themselves as "zero formaldehyde" and "formaldehyde-free" boards. As long as they are artificial boards, they will basically contain formaldehyde. The most direct way to judge whether the formaldehyde content of the board exceeds the standard is to open the wardrobe door or open the drawer. If there is a strong * * *, or the eyes are smoked, it is basically that the formaldehyde content exceeds the standard. Therefore, it is best to order furniture from a regular and well-known overall wardrobe brand merchant, and at the same time ask the merchant to show the material inspection report.
Third,
Look at this veneer
At present, the plates used in the production of panel furniture are all green melamine decorative plates pressed at high temperature and high pressure. The decorative board made of this material has high surface strength, wear resistance, scratch resistance and high temperature resistance. However, some small manufacturers are shoddy. Although the surface looks smooth and beautiful, it gives a good feeling. But with a slight stroke of the key and nail, there will be obvious scratches. This decorative board not only has poor wear resistance, but also is not fireproof.
Fourth, look at the edge sealing of the plate.
The process of the whole factory can also be seen from a small detail of the edge sealing of the plate. Professional custom furniture manufacturers use automatic CNC precision cutting saw to cut plates, and there is no edge collapse around the plates. Then use automatic edge banding machine to edge banding. Good sealing edges are generally the same color, with smooth and round edges, tight seams, obvious edges and delicate corners. However, due to the limited equipment, many small manufacturers use manual edge sealing, and the edge sealing strip is easy to fall off, the edge is rough, and it is easy to swell due to moisture, which leads to the deformation of the plate. Pay attention to whether the surroundings are sealed when buying. Only by sealing all around can the moisture in the air be effectively prevented from invading the interior of the board and releasing formaldehyde.
Question 8: What plate is used to make the wardrobe? Friends who have bought a wardrobe will more or less hear the shopping guide introduce the wardrobe plate. I'm afraid there are not many that can really be distinguished. Finally, I put it at home, but I still don't know what board to use. It doesn't matter. Kafia custom wardrobe will answer your doubts.
At present, there are seven kinds of boards commonly used in custom wardrobe industry, namely, density board, solid wood particle board, solid wood multilayer board, joinery board, fir board, ecological paint-free board and fire-proof board. Let me introduce you one by one.
Dense density board (MDF):
The powder wood fiber is formed by high temperature pressing, and the surface finish is good. Because of its softness, impact resistance, high strength, uniform density after pressing and easy reprocessing, it is suitable for making plastic plates, painted plates and so on. But the disadvantage is that it is very waterproof and easy to expand and deform. Choose density board: Density board mainly tests formaldehyde emission and structural strength. According to the formaldehyde emission, MDF is divided into E 1 grade and E2 grade. If the formaldehyde emission exceeds 30mg/ 100g, it is unqualified.
Solid wood particle board:
A new and high-grade environmental protection substrate is a board produced by particleboard technology. The density of solid wood particle board is relatively high, and the wood fiber particles in the board are relatively large, which retains the essence of natural wood. In the use of adhesive, the content of solid wood particle board is generally below 5%, which is environmentally friendly. In addition, its processability is as good as that of particleboard. Particleboard is heat-insulating and sound-absorbing, because it is easy to make, the quality is very different, it is not easy to distinguish, the bending and tensile properties are poor, the density is high, and it is easy to loosen.
Solid wood multilayer board:
It is made of three or more layers of solid wood veneer or thin plate with a thickness of about 1 mm by hot pressing. There are three splints, five splints, nine splints and twelve splints (commonly known as three splints, five splints, nine splints and twelve splints). The core of the board is: poplar, miscellaneous wood and amine wood multilayer board; Good structural strength and stability. Plywood contains a large amount of glue, so edge sealing should be done well during construction to reduce daytime pollution; Buy solid wood multi-layer board: choose multi-layer board mainly by its formaldehyde emission and bonding strength. If the bonding strength of plywood is not good, it is easy to fall apart. Pay attention to whether the nominal thickness of plywood is consistent with the actual thickness when choosing.
Blockboard:
The large core board with solid wood core has the characteristics of good screw holding force, high strength, firmness, sound absorption and heat insulation, and the water content is not high, ranging from10% to13%. Buy blockboard: the surface of blockboard should be flat, without warping, deformation, foaming and depression; The core strips are arranged evenly and neatly, with small gaps, and the core strips are free from decay, fracture, wormholes and knots.
Fir board:
Plywood is a new type of solid wood material, which is made of large-diameter logs through deep processing and processed into staggered boards similar to fingers. Laminated timber can be painted directly, which saves a process compared with blockboard.
No environmental protection paint board:
Melamine Malacca ecological paint-free board, or melamine square Chinese fir ecological paint-free board, is an all-solid wood ecological paint-free board with good stability, strong deformation resistance and strong nail grip. The most important environmental protection level is very high, reaching the European E0 standard, and the formaldehyde emission is below 0.5.
Fire protection board:
The decorative board is made of siliceous or calcareous materials as the main raw materials, with a certain proportion of fiber materials, lightweight aggregate, adhesive and chemical additives. The thickness of the decorative board is generally 0.6-1.2mm; The fireproof board is cost-effective, high in strength, fireproof and moisture-proof.
Through the detailed explanation of Kafiya's custom wardrobe, I believe that your classification of wardrobe plates is also clear. Finally, Kafia wants to tell you that custom-made wardrobe plates have their own advantages and disadvantages. The key is to choose the one that suits you and understand the performance of each plate, so as to customize a satisfactory wardrobe for yourself.
Question 9: Is it good to customize the furniture in the decoration? What materials do you usually use? It is suggested not to make too much fixed furniture when decorating, which will make the space flexibility worse.
Because there are more and more kinds and styles of furniture in the market, it may not be to your liking, but if you choose in the market, you will definitely choose it if you like, but things like wardrobes can be made fixed because they usually exist in a corner of the room, which does not affect the flexibility of the whole space.
Plates are generally integrated boards, so we must pay attention to the environmental protection grade of plates. E0 and E 1 have a price difference.
Question 10: What board does the wardrobe use? 1, Chinese fir laminate.
Sheet introduction: fir board, also known as finger joint board, is made of small pieces, and all joints are glued; Secondly, this kind of board is soft in wood, weak in strength and easy to deform and crack; Third, its surface is uneven, and it is easy to scratch clothes, and the solution to scratch clothes is to polish and spray paint, which will cause high cost, bad smell and environmental protection, and the paint is easy to change color, crack and fall off. Fourth, it is easy to get worms and difficult to take care of.
Advantages: affordable, environmentally friendly, no need to polish and spray paint, with the fragrance of Chinese fir itself.
Disadvantages: rough surface, easy to scratch clothes; Because it is easy to deform and crack, it can only be fixed with the wall and cannot be moved during processing; There are many piles and holes on the surface of the plate, which is not beautiful; After several processes (hole filling, polishing, waxing or painting) and the smell is dispersed, it can be put into use.
2, pure solid wood, imitation solid wood, solid wood veneer
Sheet introduction: the base material of solid wood furniture is natural wood, and the real pattern of wood can be seen on the surface. Pure solid wood furniture means that all the materials of furniture are solid wood, including the desktop, door panel and side panel of wardrobe. , made of pure solid wood, do not use other forms of wood-based panels. Pure solid wood furniture requires high technology and materials, such as material selection, drying, finger joint, flat-fell seam and so on. If any process is not strictly controlled, there will be cracks and looseness in the joints, and the whole set of furniture will be deformed and even unusable. Imitation solid wood furniture is solid wood furniture in appearance. The natural texture, feel and color of wood are exactly the same as those of solid wood furniture, but in fact it is a mixture of solid wood and man-made board, that is, the top, bottom and shelf of side panels are particleboard or density board, while doors and drawers are solid wood. This process saves wood and reduces the cost. So it is more acceptable in price. Furniture manufacturers sometimes paint solid wood furniture with varnish or matte paint to show the natural color of wood. Solid wood veneer generally refers to solid wood veneer, with solid wood veneer on the surface and density board inside. Compared with pure solid wood, it has stable performance and is not easy to crack, but it is not as environmentally friendly as pure solid wood.
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Advantages: Magnificent, noble and primitive temperament caters to people's psychology of returning to nature.
Disadvantages: high price, difficult to manage; Because of the process of painting, it is easy to change color, which is also the reason why the color of solid wood furniture will be used deeper and deeper. The fatal defect of solid wood furniture is that the change of moisture content makes it easy to deform, which requires special care, such as not letting the sun shine, neither too cold nor too hot, and too dry and humid environment is not suitable for solid wood furniture. If you don't pay attention when using, frequent switching of air conditioners will lead to excessive changes in temperature and humidity, and even qualified solid wood furniture products will sometimes deform and crack.
3. Trimethylammonium hydroxide plate
Sheet introduction: melamine board, full name is melamine impregnated adhesive paper veneer artificial board. It is a decorative board made by soaking different colors or textures of paper in melamine resin glue, then drying to a certain curing degree, laying it flat on the surface of particleboard, medium density fiberboard or hard fiberboard, and hot pressing. At present, the substrates used in panel furniture on the market are all of this kind, and the substrates are divided into melamine particleboard and melamine density board. Melamine board is the first choice for top European furniture manufacturers, because it has more varieties and more personality. However, it has strict environmental protection requirements and must meet the European E 1 standard.
Advantages: affordable; No deformation, no cracking and no fading; Rich in color; It is very convenient to disassemble and assemble, and the plate furniture with high processing precision can be disassembled and assembled many times; Environmental protection and fashion.
Disadvantages: it is also in environmental protection. Furniture produced by wood-based panels with excessive formaldehyde will cause indoor environmental pollution. Consumers should pay attention when buying. You can open the cupboard door or drawer and smell it. If there is a strong * * *, most of it is formaldehyde exceeding the standard. Don't buy it. decorate
4. Core plywood
The joinery board is the joinery board on the market, which is made of natural rotary veneer and solid wood mosaic by gluing and hot pressing. According to the quality of materials and the texture of flour, it can be divided into "excellent products", "first-class products" and "qualified products" The inner core is also made of poplar, birch, pine and paulownia. The veneer can be a single layer or two layers of veneers attached to both sides of the board core, and can be divided into three layers of joinery boards and five layers of joinery boards. There are some problems in the production process of blockboard, such as excessive formaldehyde emission, unqualified transverse static bending strength, unqualified product moisture content and low bonding strength. The common practice in woodworking furniture is to add three centimeters of wood grain to the board and then paint it.
Advantages: the price is really ... >>